Battery piece series welding machine and battery piece production method

Abstract

The embodiment of the invention provides a battery piece series welding machine and a battery piece production method. The battery piece series welding machine comprises a feeding device used for conveying materials to a preset position; the glue printing device is used for carrying out glue dispensing on the surface of the material conveyed to the glue printing device to form a glue dispensing position; the first transfer mechanism is located between the feeding device and the glue printing device; the first transfer mechanism is used for conveying the materials located at the preset position to the glue printing device or further used for conveying the single-face glue dispensing materials conveyed back by the glue printing device to the glue printing device again. The welding strip processing device is located on one side of the glue printing device, the welding strip processing device is used for covering the surface of the dispensed material with a welding strip, and the welding strip corresponds to the glue dispensing position; the curing device is located on one side of the welding strip processing device and used for pre-fixing the welding strip; and the welding device is located on one side of the curing device, and the welding device is used for welding the pre-fixed welding strip and the material. The quality of a photovoltaic panel machined by the battery piece series welding machine is good, and the percent of pass is high.

Description

[0001] This application claims the priority of the Chinese patent application filed with the China Patent Office on June 12, 2024, with application number 202421340901.0 and application name “Battery Cell Production Equipment and Battery Cell”, all contents of which are incorporated by reference in this application.

[0002] This application claims the priority of the Chinese patent application filed with the China Patent Office on June 12, 2024, with application number 202421341615.6 and application name “Battery Cell Stringing Machine”, all contents of which are incorporated by reference in this application. Technical Field

[0003] The embodiments of the present application relate to the technical field of solar panels, and more specifically, to a battery cell string welding machine and a battery cell production method. Background Art

[0004] In the related art, photovoltaic circuit boards are generally prepared by welding solder strips on silicon wafers. In order to improve the stability of the welding connection, the solder strips need to be glued. However, the quality of photovoltaic panels produced by current production lines is poor and the pass rate is low.

[0005] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Summary of the invention

[0006] The purpose of this application is to provide a new technical solution for a battery cell string welding machine.

[0007] In a first aspect, an embodiment of the present application provides a battery cell string welding machine. The battery cell string welding machine comprises:

[0008] A loading device, used to transfer materials to a preset position;

[0009] A glue printing device, used for applying glue to the surface of the material transferred thereto to form a glue dispensing position;

[0010] A first transfer mechanism is located between the feeding device and the glue printing device; the first transfer mechanism is used to transfer the material located at the preset position to the glue printing device, or is also used to transfer the single-sided glue-dispensing material returned by the glue printing device to the glue printing device again;

[0011] A solder strip processing device, located on one side of the glue printing device, the solder strip processing device is used to cover the surface of the material with a solder strip after glue application, the solder strip corresponding to the glue application position;

[0012] A curing device, located on one side of the solder strip processing device, and used for pre-fixing the solder strip;

[0013] A welding device is located on one side of the curing device, and is used to weld the pre-fixed welding strip to the material.

[0014] Optionally, the feeding device includes a first conveying mechanism, a material grabbing mechanism, a first turning mechanism and a second conveying mechanism;

[0015] The first conveying mechanism is located on one side of the material grabbing mechanism, and the second conveying mechanism is located below the first turning mechanism and the material grabbing mechanism;

[0016] The material grabbing mechanism is used to transfer the material from the first conveying mechanism to the second conveying mechanism;

[0017] Wherein, every two adjacent materials transmitted to the second conveying mechanism form a group, and the first turning mechanism is used to turn over one material in each group and transfer it to the second conveying mechanism.

[0018] Optionally, the rubber printing device comprises a rubber printing component and a second transport mechanism, and the rubber printing component is located between the first transport mechanism and the second transport mechanism;

[0019] The printing glue device further comprises a first transmission mechanism, which is located on a side of the second transfer mechanism away from the printing glue component, and the second transfer mechanism is used to transfer the material of the printing glue component to the first transmission mechanism.

[0020] Optionally, the glue printing device further comprises a second transmission mechanism and a third transmission mechanism, the third transmission mechanism is arranged close to the first transfer mechanism, and the first transfer mechanism is used to transfer the single-sided glue dispensing material returned by the third transmission mechanism to the glue printing component again;

[0021] A rotating mechanism is provided between the first transmission mechanism and the second transmission mechanism, and the rotating mechanism is used to transfer the single-sided glued material of the first transmission mechanism to the second transmission mechanism and rotate it by a preset angle, and

[0022] A second flipping mechanism is provided between the second conveying mechanism and the third conveying mechanism, and the second flipping mechanism is used to flip the material of the second conveying mechanism by 180 degrees and transfer it to the third conveying mechanism.

[0023] Optionally, the first transmission mechanism, the second transmission mechanism and the third transmission mechanism are all provided with glue-avoiding tooling.

[0024] Optionally, the first transfer mechanism and / or the second transfer mechanism is a four-rotating clamping device.

[0025] Optionally, the welding ribbon processing device includes a first transport mechanism, a conveying robot and a welding ribbon laying and transporting platform;

[0026] A conveying mechanism is provided between the first conveying mechanism and the rubber printing device, and the conveying mechanism is used to convey the material output by the rubber printing device to the first conveying mechanism;

[0027] The conveying robot is located on one side of the first transport mechanism, and is used to transfer materials from the first transport mechanism to the welding ribbon laying and transmission platform.

[0028] Optionally, the solder strip processing device further includes a flux coating mechanism, a solder strip stretching component and a solder strip pre-processing component;

[0029] The flux coating mechanism and the solder ribbon laying and transmission platform are located between the solder ribbon pretreatment component and the solder ribbon stretching component, and the flux coating mechanism is located between the solder ribbon laying and transmission platform and the solder ribbon pretreatment component;

[0030] The solder ribbon stretching assembly and the solder ribbon pretreatment assembly cooperate to make the solder ribbon close to the surface of the material on the solder ribbon laying and conveying platform, and the flux coating mechanism can coat the solder ribbon with flux.

[0031] Optionally, the welding strip processing device further includes a pressing net, a second transport mechanism and a pressing net return mechanism;

[0032] The pressing net can press the welding ribbon tightly against the surface of the material;

[0033] The press mesh return mechanism is located on one side of the curing device and is used to return the press mesh on the cured material to the second transport mechanism;

[0034] The second transport mechanism is located on one side of the conveying robot, and the conveying robot is used to transfer the pressing net to the welding ribbon laying and transmission platform.

[0035] Optionally, the curing device comprises a third transport mechanism, and a curing component is arranged above and / or below the third transport mechanism;

[0036] The third transport mechanism is connected to the welding ribbon laying and transporting platform so as to facilitate the transport of materials to the third transport mechanism for curing.

[0037] Optionally, the welding device comprises a welding transport mechanism and a welding mechanism, wherein the welding transport mechanism is used to transport the material of the curing device to the welding mechanism;

[0038] The welding mechanism is used to weld the welding strip to the material.

[0039] In a second aspect, the present application also provides a method for producing a battery cell. The method for producing a battery cell is applied to the battery cell string welding machine as described in the first aspect. The method for producing a battery cell comprises the following steps:

[0040] Supply of materials;

[0041] Glue is applied to the first surface and / or the second surface of the material to form a glue dispensing position; the first surface and the second surface are arranged opposite to each other;

[0042] Arranging a welding tape on the material, wherein the welding tape corresponds to the glue dispensing position;

[0043] Curing the glue dispensing position to pre-fix the welding strip;

[0044] The pre-fixed welding strip and the material are welded to form a battery cell.

[0045] According to the embodiments of the present application, the photovoltaic panels processed by the cell string welding machine of the present application are of good quality and have a high pass rate.

[0046] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0048] Figure 1 Shown is the overall structural block diagram of the battery cell string welding machine provided in an embodiment of the present application.

[0049] Figure 2 The figure shows a partial structural frame of the battery cell string welding machine provided in the embodiment of the present application. Figure 1 .

[0050] Figure 3 The figure shows a partial structural frame of the battery cell string welding machine provided in the embodiment of the present application. Figure 2 .

[0051] Figure 4 Shown is a structural diagram of a feeding device provided in an embodiment of the present application.

[0052] Figure 5 Shown is a structural diagram of the first flipping mechanism provided in an embodiment of the present application.

[0053] Figure 6 Shown is a structural diagram of the first transfer mechanism provided in an embodiment of the present application.

[0054] Figure 7 and Figure 8 Shown is a structural diagram of a welding handling mechanism provided in an embodiment of the present application.

[0055] Fig. 9 Shown is a structural diagram of a welding mechanism provided in an embodiment of the present application.

[0056] Description of reference numerals:

[0057] 1. Loading device; 10. First conveying mechanism; 11. Material grabbing mechanism; 12. First turning mechanism; 13. Second conveying mechanism;

[0058] A, feeding position; B, discharging position; 101, material box; 1011, support plate; 1012, supporting member; 102, first conveying member; 103, ejecting mechanism; 104, blowing mechanism;

[0059] 121, first flip unit; 1211, first driving component; 1212, flip assembly; 1213, second driving component; 1214, flip body; 122, adjustment mechanism;

[0060] 2. first transfer mechanism; 20. first fixture; 21. first axis;

[0061] 3. Glue printing device; 31. Glue printing assembly; 32. Second transfer mechanism; 33. First transmission mechanism; 34. Second transmission mechanism; 35. Third transmission mechanism;

[0062] 4. Welding strip processing device; 40. First transport mechanism; 41. Conveying mechanism; 42. Conveying manipulator; 43. Welding strip laying and conveying platform; 44. Second transport mechanism; 45. Pressing and returning mechanism;

[0063] 5. Curing device; 50. Third transport mechanism;

[0064] 6. Welding device; 61. Welding transport mechanism; 611. Installation mechanism; 612. Pick-up mechanism; 613. Pressing mechanism; 6131. ​​Pressing member;

[0065] 62. welding mechanism; 621. heating device; 622. fixing plate; 623. mounting frame; 624. heating body; 625. welding platform; DETAILED DESCRIPTION

[0066] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0067] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0068] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0069] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0070] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0071] The first aspect of the present application provides a battery cell string welding machine. Figure 1 The battery cell string welding machine includes: a feeding device 1, a first transport mechanism 2, a glue printing device 3, a welding strip processing device 4, a curing device 5 and a welding device 6.

[0072] The feeding device 1 is used to transfer the material to a preset position;

[0073] The glue printing device 3 is used to apply glue to the surface of the material transmitted thereto to form a glue dispensing position;

[0074] The first transfer mechanism 2 is located between the feeding device 1 and the rubber printing device 3;

[0075] The first transfer mechanism 2 is used to transfer the material located at the preset position to the glue printing device 3, or is also used to transfer the single-sided glue-dispensed material returned by the glue printing device 3 to the glue printing device 3 again;

[0076] The solder strip processing device 4 is located on one side of the glue printing device 3, and the solder strip processing device 4 is used to cover the surface of the material with solder strip after glue application, and the solder strip corresponds to the glue application position;

[0077] The curing device 5 is located on one side of the solder strip processing device 4, and the curing device 5 is used to pre-fix the solder strip;

[0078] The welding device 6 is located on one side of the curing device 5, and is used to weld the pre-fixed welding strip to the material.

[0079] In the embodiment of the present application, the cell string welding machine realizes the automatic series welding process of the cell through the coordinated work of the feeding device 1, the first transfer mechanism 2, the glue printing device 3, the welding strip processing device 4, the curing device 5 and the welding device 6. The cell string welding machine is an automated production equipment, which is mainly used in the production process of solar cells to connect the cells in series through welding strips to form a cell string.

[0080] Specifically, the battery cell string welding includes a loading device 1, which is responsible for accurately transferring the material to a preset position for subsequent processing. For example, the material can be a bare chip of the battery cell - a silicon chip.

[0081] In the process of producing solar cells, two silicon wafers are often connected together by welding strips, so the two silicon wafers can be regarded as a group of silicon wafers, and the silicon wafers are loaded in the form of a group through the loading device 1.

[0082] The battery cell string welding machine also includes a first transport mechanism 2 , which is located between the feeding device 1 and the glue printing device 3 .

[0083] The first transfer mechanism 2 is responsible for transferring the material to the glue dispensing device for further processing. The material may be the material located at the preset position of the feeding device 1, wherein the material located at the preset position of the feeding device 1 is the material without glue on both sides. Alternatively, the material may be the material with glue on one side that is returned by the glue printing device 3.

[0084] Specifically, the first transfer mechanism 2 is used to transfer the material delivered by the feeding device 1 to the glue printing device 3, and the glue printing device 3 performs glue dot processing on one surface of the material.

[0085] If, according to actual needs, single-sided glue application of the material can be used to realize the production and processing of the battery cell, after the glue printing device 3 applies glue to one of the surfaces of the material, the single-sided glue application material is directly transferred to the next process.

[0086] If, according to actual needs, it is necessary to glue the material on both sides, after the glue printing device 3 glues one of the surfaces of the material, the material with glue on one side needs to be returned, so that the first transfer mechanism 2 can transfer the material with glue on one side returned by the glue printing device 3 to the glue printing device 3 again, and the glue printing device 3 glues the other surface of the material. The "one surface" and "the other surface" defined above can be two surfaces arranged opposite to each other.

[0087] The battery cell string welding machine also includes a glue printing device 3, which dispenses glue on the surface of the material transmitted thereto to form glue dispensing positions. These glue dispensing positions are the basis for subsequent solder strip covering and welding.

[0088] The glue dispensing scheme of the glue printing device 3 can be multiple, for example, it can be glue dispensing by glue dispensing head, glue dispensing by jetting, or glue dispensing by silk screen printing. Taking the silk screen dispensing method as an example, the silk screen screen cover is set on the battery cell, and the scraper is dipped in the adhesive to print the adhesive on the material. By processing the battery cell by dispensing first and then welding, the amount of glue dispensing can be better controlled.

[0089] The dispensing device can be used to dispense glue on one side of the battery cell, or the dispensing device can be used to dispense glue on both sides of the battery cell. When the dispensing device is used to dispense glue on both sides of the battery cell, it is necessary to dispense glue on one surface of the material first, and then dispense glue on the other surface of the material through a flipping mechanism or the like.

[0090] Optionally, according to the actual application of the battery cell, the dispensing device can process a group of battery cells (two battery cells) at the same time. When processing a group of battery cells at the same time, the first surface (i.e., the front side) of one battery cell and the second surface (the back side) of another battery cell can be processed at the same time.

[0091] The cell stringing machine also includes a solder strip processing device 4, which is located on one side of the glue printing device 3. The solder strip processing device 4 covers the surface of the material after glue application with a solder strip, and the solder strip corresponds to the glue application position to ensure that the solder strip can be firmly adhered to the material.

[0092] Specifically, the solder tape processing device 4 is used to lay solder tape on the material after glue dispensing, that is, firstly form glue dispensing positions on the material, and then lay solder tape on the material in combination with the arrangement of the glue dispensing positions.

[0093] The soldering tape is attached to the surface of the adhesive, that is, the height of the soldering tape is higher than the height of the adhesive. In this way, the soldering tape becomes a protective structure to isolate the adhesive part and prevent the adhesive part from touching other parts during the transmission of materials.

[0094] Optionally, the solder strip processing device 4 can lay solder strips on a group of battery cells or multiple groups of battery cells at the same time.

[0095] The cell string welding machine also includes a curing device 5, which is located on one side of the solder strip processing device 4. The curing device 5 pre-fixes the solder strip covering the surface of the material, and enhances the adhesion between the solder strip and the glue dispensing position by heating or other means.

[0096] Specifically, the curing device 5 performs a curing process on the adhesive on which the solder strip is arranged, which, on the one hand, fixes the adhesive and strengthens the connection with the material, and on the other hand, fixes the adhesive to improve the connection reliability between the solder strip and the adhesive.

[0097] Optionally, the curing device 5 may use thermal curing, UV curing or other curing techniques. The specific curing method and parameters (such as temperature, time, light intensity, etc.) may be adjusted according to the properties of the adhesive and soldering tape used.

[0098] The battery cell string welding machine also includes a welding device 6, which is located on one side of the curing device 5. The welding strip and the battery cell are welded together by welding to improve the reliability of the electrical connection. That is to say, in the embodiment of the present application, a glue point is first formed on the material, and then the welding strip is arranged on the material in combination with the arrangement of the glue point; then the adhesive is cured so that the welding strip and the adhesive are fastened together, and finally the welding strip and the material are welded together by welding to form a battery cell.

[0099] Optionally, the welding device 6 generally adopts pressure welding, laser welding, ultrasonic welding or other welding techniques. The welding parameters and conditions (such as welding temperature, welding time, welding pressure, etc.) will ensure that a firm connection is formed between the welding ribbon and the battery cell.

[0100] Therefore, in the embodiment of the present application, the material is firstly glued, and then the welding tape is covered on the material, the welding tape corresponds to the glue-dispensing position, so that the welding tape can be bonded to the surface of the material after the glue is cured, and then the welding tape is welded to the material through the welding device 6. The photovoltaic panel processed by the battery cell string welding machine of the present application is of good quality and has a high pass rate. In other words, the embodiment of the present application adjusts the fixing method of the welding tape to the material, that is, the welding tape is fixed by first glue-dispensing and then welding the welding tape. In this way, after the adhesive is cured, the bonding force between the welding tape and the adhesive is strong during the turnover process of the material, and the welding tape is not easy to fall off, thereby improving the pass rate of photovoltaic panel processing; in addition, by first glue-dispensing the material to form a glue-dispensing position, the thickness and dosage of the bonding can be better controlled, so as to better control the overall thickness of the battery cell.

[0101] Optionally, the battery cell string welding machine may further include a waste collection mechanism for collecting waste.

[0102] Optionally, the cell string welding machine may further include a detection device, which includes an EL detection, namely, electroluminescence detection, which is a technology that uses the principle of electroluminescence to detect internal or surface defects of materials. That is, it can detect whether the electrical connection between the material and the welding strip is stable.

[0103] The embodiment of the present application may also provide a battery cell string welding system, which includes two sets of battery cell string welding machines. For example, the two sets of battery cell string welding machines may be arranged in parallel.

[0104] 〈Feeding device 1〉

[0105] In one embodiment, referring to Figure 4The feeding device 1 includes a first conveying mechanism 10, a material grabbing mechanism 11, a first turning mechanism 12 and a second conveying mechanism 13;

[0106] The first conveying mechanism 10 is located on one side of the material grabbing mechanism 11, and the second conveying mechanism 13 is located below the first turning mechanism 12 and the material grabbing mechanism 11;

[0107] The material grabbing mechanism 11 is used to transfer the material of the first conveying mechanism 10 to the second conveying mechanism 13;

[0108] Wherein, every two adjacent materials transmitted to the second conveying mechanism 13 form a group, and the first turning mechanism 12 is used for turning over one material in each group and transferring it to the second conveying mechanism 13 .

[0109] In the embodiment of the present application, the feeding device 1 includes a first conveying mechanism 10, and the first conveying mechanism 10 is used to convey the material to a position convenient for the material grabbing mechanism 11 to grab the material.

[0110] The feeding device 1 further includes a material grabbing mechanism 11 , which is located at one side of the first conveying mechanism 10 , so that the material grabbing mechanism 11 can grab materials from a discharging position B of the first conveying mechanism 10 .

[0111] Since the second conveying mechanism 13 is located below the material grabbing mechanism 11 , the material grabbing mechanism 11 transfers the grabbed material to the second conveying mechanism 13 .

[0112] The feeding device 1 further includes a second conveying mechanism 13 , which is used to transport the material to a preset position of the feeding device 1 , so that the first transfer mechanism 2 transfers the material at the preset position to the rubber printing device 3 .

[0113] For example, when the material does not need to be turned 180 degrees, the material grabbing mechanism 11 transfers the grabbed material to the second conveying mechanism 13, and the second conveying mechanism 13 directly transfers the material to a preset position.

[0114] When the material needs to be flipped 180°, the material device mechanism transfers the grabbed material to the second conveying mechanism 13, and the first flipping mechanism 12 located above the second conveying mechanism 13 grabs the material to be flipped and flips it, and then transfers the flipped material to the second conveying mechanism 13 again, and the second conveying mechanism 13 transfers the flipped material to a preset position.

[0115] For example, in the production process of solar cells, two materials are often arranged one front and one back, and connected together by a welding strip. In this case, on the second conveying mechanism 13, each two adjacent materials are regarded as a group. The first flipping mechanism 12 acts on one material in each group, flips it 180° and puts it back to the second conveying mechanism 13, so that when a group of silicon wafers are subsequently dispensed, the two silicon wafers are arranged one front and one back.

[0116] Exemplarily, the second conveying mechanism 13 transports a plurality of materials to a preset position, wherein two materials form a group and the two materials are arranged one front and one back.

[0117] In this embodiment, the feeding device 1 can realize automatic grabbing, transfer and flipping of materials, thereby improving production efficiency.

[0118] The first conveying mechanism 10

[0119] In a specific embodiment, the structure of the first conveying mechanism 10 is limited.

[0120] Reference Figure 4 The first conveying mechanism 10 has a feeding position A and a discharging position B. The first conveying mechanism 10 is used to convey the material box 101 located at the feeding position A. The material box 101 includes a support plate 1011 and a supporting component 1012. The support plate 1011 can be movably arranged on the supporting component 1012. The support plate 1011 is used to carry the stacked materials. The supporting component 1012 is provided with a second avoidance hole.

[0121] The first conveying mechanism 10 includes a first conveying component 102 , and the first conveying component 102 is provided with a first avoidance hole; for example, the first conveying component 102 can be a structure such as a conveyor belt.

[0122] The first conveying mechanism 10 also includes a push mechanism 103, which is located below the first conveying component 102 and corresponds to the material discharging position B. The push mechanism 103 penetrates the first avoidance hole and the second avoidance hole to push the support plate 1011, so that the uppermost material on the support plate 1011 is continuously moved to the target position, wherein the target position is related to the push force of the push mechanism 103 and the thickness of the material. Generally, the push distance of the push mechanism 103 is the thickness of one material.

[0123] The first conveying mechanism 10 also includes a blowing mechanism 104, which is arranged on the first conveying mechanism 10 and located at the discharge position B. The blowing mechanism 104 is used to blow the material at the target position to the grabbing position, and the grabbing position is higher than the target position in the vertical direction so that the material grabbing mechanism 11 can grab the material.

[0124] Therefore, in the structure of the first conveying mechanism 10, through the coordinated action of the pushing mechanism 103 and the blowing mechanism 104, the pushing mechanism 103 pushes up a piece of the top layer of material, and then the blowing mechanism 104 blows up the top layer of material to the grabbing position; when the blowing mechanism 104 blows up the top layer of material to the grabbing position, the pushing mechanism 103 can push up another piece of the top layer of material, wherein the pushing process and the blowing material process are continuous processes, so that the top layer of material on the pallet 1011 continuously appears at the target position.

[0125] After the uppermost layer of material is pushed to the target position, the blowing mechanism 104 is activated. The blowing mechanism 104 blows up the uppermost layer of material at the target position by blowing air, and further moves it to the grabbing position for subsequent grabbing or processing operations.

[0126] Therefore, in this embodiment, the first conveying mechanism 10 can efficiently realize the automatic loading process of materials through the coordinated work of the pushing mechanism 103 and the blowing mechanism 104, while also avoiding damage to the materials during the grabbing process.

[0127] It should be noted that the structure of the above-mentioned blowing mechanism 104 can be a blowing air knife, or other types of structures, as long as it can blow the pushed material up to the grabbing position.

[0128] The improved ejection mechanism 103 can be a stepper motor combined with a lead screw or other structures, or the ejection mechanism 103 can be other types of structures, as long as it can push the top layer of material in the material box 101 to the target position.

[0129] Optionally, the first conveying mechanism 10 may further include a limiting mechanism, which is located below the first conveying component 102 and is telescopically arranged on the front and / or rear side of the blowing mechanism 104, wherein the front side is the front of the conveying direction of the first conveying mechanism 10, and the rear side is the rear of the conveying direction of the first conveying mechanism 10.

[0130] Material grabbing mechanism 11

[0131] In a specific embodiment, the structure of the material grabbing mechanism 11 is described.

[0132] For example, the material grabbing mechanism 11 may include a driving component and a material grabbing component, wherein the driving component includes but is not limited to a cylinder or a motor, etc. The material grabbing component includes but is not limited to a clamping claw or a suction cup, etc.

[0133] The first turning mechanism 12

[0134] In a specific embodiment, the structure of the first turning mechanism 12 is described.

[0135] Reference Figure 4 and Figure 5 The first flipping mechanism 12 includes a first flipping unit 121, and the first flipping unit 121 includes a first driving component 1211 and a flipping assembly 1212. The first driving component 1211 drives the flipping assembly 1212 to move in a vertical direction. The first driving component 1211 includes but is not limited to a motor, a cylinder or a hydraulic cylinder, etc.

[0136] The flipping assembly 1212 includes a second driving component 1213 and a flipping body 1214, the flipping body 1214 includes a first grabbing unit, and the first grabbing unit is used to grab the material to be flipped; the second driving component 1213 drives the flipping body 1214 to rotate around a first horizontal direction to flip the material; the first driving component 1211 includes but is not limited to a motor, a cylinder or a hydraulic cylinder, etc., and the first grabbing unit includes but is not limited to a clamp or a suction cup, etc.

[0137] The first turning mechanism 12 further includes an adjusting mechanism 122 , which is located beside the first turning unit 121 . The adjusting mechanism 122 is used to grab the turned material on the first grabbing unit and place the grabbed material on the second conveying mechanism 13 .

[0138] It should be noted that the present embodiment does not limit the structure of the adjustment mechanism 122 , as long as the material can be placed on the second conveying mechanism 13 . The present embodiment does not limit the structure of the flip body 1214 , as long as the flip can be achieved under the drive of the second driving component 1213 .

[0139] In an optional embodiment, a deviation correction component is further provided on one side of the feeding device 1, and the deviation correction component can drive the material to move so as to adjust the placement position and placement direction of the material.

[0140] It should be noted that the battery string welding machine can also include more deviation correction components. For example, in the process of material transportation, when the placement position and placement direction of the material need to be adjusted, a deviation correction component can be set at the corresponding position. For example, when describing the structure of the glue printing device 3 below, a deviation correction component can be set beside the third conveying mechanism of the glue printing device 3.

[0141] 〈Printing device 3〉

[0142] In one embodiment, referring to Figure 1 and Figure 2 The printing glue device 3 includes a printing glue component 31 and a second transfer mechanism 32, and the printing glue component 31 is located between the first transfer mechanism 2 and the second transfer mechanism 32;

[0143] The printing glue device 3 further includes a first transmission mechanism 33 , which is located on a side of the second transfer mechanism 32 away from the printing glue assembly 31 . The second transfer mechanism 32 is used to transfer materials of the printing glue assembly 31 to the first transmission mechanism 33 .

[0144] In this embodiment, the glue printing device 3 includes a glue printing component 31. The glue printing component 31 is the core part of the glue printing device 3 and is responsible for applying glue or glue printing on the material. For example, the glue printing component 31 may include a glue printing device and a material carrying platform.

[0145] The printing glue assembly 31 is located between the first transfer mechanism 2 and the second transfer mechanism 32, which means that the material will first pass through the first transfer mechanism 2 and then be sent to the printing glue assembly 31 for printing glue. The first transfer mechanism 2 transfers the material with glue applied on one side and the material without glue applied on both sides to the material carrying platform, and the material is processed by the printing glue equipment.

[0146] The printing device 3 further includes a second transfer mechanism 32, the main function of which is to transfer the material processed by the printing assembly 31 to other places. In this embodiment, the second transfer mechanism 32 is responsible for transferring the printed material to the first transmission mechanism 33.

[0147] For example, when it is necessary to apply glue to both sides of the material to realize the production and processing of battery cells, after the glue is applied to both opposite sides of the material, the material with double-sided glue is transferred to the first transmission mechanism 33 through the second transmission mechanism 32, and then transferred to the solder strip processing device 4 through the first transmission mechanism 33 to arrange the solder strips on both sides of the material.

[0148] Or when it is necessary to glue both sides of the material to realize the production and processing of battery cells, after glue is applied to one surface of the material, the material with glue applied on one side is transferred to the first transmission mechanism 33 through the second transfer mechanism 32, and then transferred to the return mechanism of the glue printing device 3 (the second transmission mechanism 34 and the third transmission mechanism 35 mentioned below) through the first transmission mechanism 33, so as to glue the other surface of the material.

[0149] The structure of the second transfer mechanism 32 is similar to that of the first transfer mechanism 2 described below. The second transfer mechanism 32 can also be a four-rotating clamping claw device.

[0150] The printing glue device 3 also includes a first transmission mechanism 33, which is located on the side of the second transfer mechanism 32 away from the printing glue assembly 31. The first transmission mechanism 33 is responsible for further transmitting the material to other links on the production line or for subsequent processing. According to the above, the first transmission mechanism 33 is used to transmit the material to the welding strip processing device 4 or to the return mechanism of the printing glue device 3.

[0151] In this embodiment, the smooth flow of materials during the printing rubber processing is ensured, thereby improving production efficiency.

[0152] Further, refer to Figure 2 The printing glue device 3 further includes a second transmission mechanism 34 and a third transmission mechanism 35. The third transmission mechanism 35 is arranged close to the first transfer mechanism 2. The first transfer mechanism 2 is used to transfer the single-sided glue-dispensing material returned by the third transmission mechanism 35 to the printing glue component 31 again.

[0153] A rotating mechanism is provided between the first transmission mechanism 33 and the second transmission mechanism 34, and the rotating mechanism is used to transfer the single-sided glued material of the first transmission mechanism 33 to the second transmission mechanism 34 and rotate it by a preset angle, and

[0154] A second flipping mechanism is provided between the second conveying mechanism 34 and the third conveying mechanism, and the second flipping mechanism is used to flip the material of the second conveying mechanism 34 by 180° and transfer it to the third conveying mechanism 35 .

[0155] Specifically, the glue printing device 3 further includes a second transmission mechanism 34 and a third transmission mechanism 35, as well as a rotation mechanism and a second flipping mechanism, which work together to complete the return of the single-sided glue-dispensed material.

[0156] The rotating mechanism is located between the first transmission mechanism 33 and the second transmission mechanism 34. The function of the rotating mechanism is to transfer the single-sided glued material on the first transmission mechanism 33 to the second transmission mechanism 34, and rotate the material by a preset angle during the process. This rotation step is to adjust the direction of the material for subsequent processing or treatment.

[0157] For example, the material of the second conveying mechanism 34 is rotated by 90° compared with the material of the first conveying mechanism 33 to facilitate the subsequent flipping and transfer of the material.

[0158] The third transmission mechanism 35 is disposed close to the first transfer mechanism 2 , which means that when the material needs double-sided glue dispensing, the material with single-sided glue dispensing will flow back from the third transmission mechanism 35 to the glue printing device 3 .

[0159] The first transfer mechanism 2 is used to transfer the single-sided glue-dispensing material returned by the third transmission mechanism 35 to the glue-dispensing assembly 31 again, so as to perform glue-dispensing processing on the other side to achieve double-sided glue-dispensing.

[0160] It should be noted that the structure of the second flipping mechanism may be similar to or the same as the structure of the first flipping mechanism 12 mentioned above.

[0161] It should be noted that the structures of the first transmission mechanism 33 and the second transmission mechanism 34 include but are not limited to transmission belts, belts, rollers, etc., as long as the materials can be transmitted.

[0162] Furthermore, the structures of the first transmission mechanism 33 , the second transmission mechanism 34 and the third transmission mechanism 35 are further limited, and the first transmission mechanism 33 , the second transmission mechanism 34 and the third transmission mechanism 35 are all provided with glue-avoiding tooling.

[0163] In this embodiment, a glue avoidance tool is provided on the first conveying mechanism 33, the second conveying mechanism 34 and the third conveying mechanism 35. The glue avoidance tool is a special device installed on the conveying mechanism for preventing the silk-screen printed adhesive on the material from being contaminated or damaged during the conveying process.

[0164] It should be noted that, in all processes after gluing the material and before the adhesive is cured, a glue-avoiding tool can be provided on the transmission mechanism used to transmit the material.

[0165] Optionally, the glue avoidance function can be achieved by physical isolation, airflow control or other methods to ensure that the printed adhesive remains clean during the transmission process. For example, the glue avoidance tooling can include a conveyor belt and a support mechanism disposed on the conveyor belt, and the structure of the support mechanism is improved to avoid the glue point position.

[0166] Exemplarily, the support mechanism includes a protrusion, a recessed portion and a positioning member. When the support mechanism supports the material, the multiple protrusions of the support member can support the material, and the recessed portion between two adjacent protrusions corresponds to the glue dispensing position on the surface of the material, thereby avoiding the glue dispensing position on the surface of the material and contacting the edge of the material through the positioning member to position the material on the support member.

[0167] Alternatively, the support mechanism includes a support member. A support portion is provided at the edge of the support member, and the support portion is suitable for supporting the edge of one side of the material, so as to avoid the glue point on the surface of the material, so as to prevent the glue point on the surface of the material from being adhered to the conveyor belt and the like when the workpiece is transported.

[0168] Or optionally, the glue-avoiding tooling may be a glue-avoiding conveyor belt. For example, avoidance structures such as gaps and holes may be provided on the glue-avoiding conveyor belt to avoid the glue point positions.

[0169] It should be noted that the embodiments of the present application do not limit the specific structure of the glue-avoiding tooling, as long as the bonding portion of the battery cell can be prevented from being contaminated and damaged during the transmission process.

[0170] 〈First Transfer Agency 2〉

[0171] In a specific embodiment, referring to Figure 1 and Figure 6 The first transfer mechanism 2 includes a plurality of first clamps 20, and the plurality of first clamps 20 can rotate around a first axis 21; wherein the above-mentioned feeding device 1, the printing glue component 31 of the printing glue device 3, the third conveying mechanism of the printing glue device 3, and the waste collecting mechanism are arranged around the first axis 21, and the first clamps 20 can transfer materials between the feeding device 1, the printing glue component 31, the third conveying mechanism, and the waste collecting mechanism.

[0172] Specifically, the first transfer mechanism 2 includes four first clamps 20, that is, the first transfer mechanism is a four-rotating clamp mechanism. The four first clamps 20 are arranged at intervals along the circumference of the rotating shaft. When each first clamp 20 rotates to the loading device 1, the printing rubber component 31, the third conveying mechanism and the waste collection mechanism, it can choose whether to put down or clamp the material. The first transfer mechanism 2 can improve the transfer efficiency and keep the transfer process at a low value by setting four first clamps 20.

[0173] It should be noted that, in this embodiment, the structure of the first clamp 20 is not limited, as long as it can clamp and place materials.

[0174] <Solder ribbon processing device 4>

[0175] In one embodiment, referring to Figure 2 and Figure 3 The welding ribbon processing device 4 includes a first transport mechanism 40, a conveying robot 42 and a welding ribbon laying and transmission platform 43;

[0176] A conveying mechanism 41 is provided between the first conveying mechanism 40 and the rubber printing device 3, and the conveying mechanism 41 is used to convey the material outputted by the rubber printing device 3 to the first conveying mechanism 40;

[0177] The conveying robot 42 is located at one side of the first transport mechanism 40 , and is used to transfer the materials of the first transport mechanism 40 to the welding ribbon laying and transmission platform 43 .

[0178] In this embodiment, the ribbon processing device 4 includes a first transport mechanism 40 and a conveying mechanism 41 located between the first transport mechanism 40 and the glue printing device 3. For example, the conveying mechanism 41 is used to transfer the double-sided glue-dispensed material of the first conveying mechanism 33 of the glue printing device 3 to the first transport mechanism 40. The first transport mechanism 40 transfers the double-sided glue-dispensed material to a position convenient for the conveying robot to grab.

[0179] The welding ribbon processing device 4 also includes a conveying robot 42, which is located on one side of the first transport mechanism 40. The conveying robot 42 transfers the material on the first transport mechanism 40 to the welding ribbon laying and transmission platform 43. Optionally, the conveying robot 42 is a six-axis robot.

[0180] The welding strip processing device 4 also includes a welding strip laying and conveying platform 43, which receives the materials transferred by the conveying robot 42 and is responsible for the subsequent welding strip laying.

[0181] Exemplarily, the glue-avoiding tooling defined above may be provided on both the first transport mechanism 40 and the conveying mechanism 41 .

[0182] In one embodiment, the solder strip processing device 4 further includes a flux coating mechanism, a solder strip stretching component and a solder strip pre-processing component;

[0183] The flux coating mechanism and the solder strip laying and transporting platform 43 are located between the solder strip pretreatment component and the solder strip stretching component, and the flux coating mechanism is located between the solder strip laying and transporting platform 43 and the solder strip pretreatment component;

[0184] The solder ribbon stretching assembly and the solder ribbon pretreatment assembly cooperate to make the solder ribbon close to the surface of the material on the solder ribbon laying and conveying platform 43, and the flux coating mechanism can coat the solder ribbon with flux.

[0185] In this embodiment, the solder strip processing device 4 is further expanded, and the solder strip processing device 4 includes a flux coating mechanism, a solder strip stretching component and a solder strip pretreatment component, which work together to coat the solder strip with flux after stretching, so as to facilitate the smooth progress of subsequent processes.

[0186] The flux coating mechanism is located between the solder strip pretreatment component and the solder strip placement and transmission platform 43 .

[0187] After the soldering ribbon is coated with solder flux, the soldering ribbon coated with solder flux is arranged on the material, and the soldering ribbon corresponds to the dispensing position of the material.

[0188] The welding ribbon stretching assembly cooperates with the welding ribbon pre-processing assembly to stretch the welding ribbon so that it can be closely attached to the surface of the material on the welding ribbon laying and conveying platform 43 .

[0189] Welding ribbon pretreatment component: located before the welding ribbon stretching component, responsible for pre-treating the welding ribbon so that it can better combine with the material.

[0190] Welding ribbon pretreatment components

[0191] Exemplarily, the solder ribbon preprocessing assembly may include a solder ribbon unwinding mechanism, a solder ribbon buffering mechanism, a solder ribbon flattening mechanism and a solder ribbon pre-stretching mechanism. The solder ribbon pre-stretching mechanism and the solder ribbon stretching assembly are located on opposite sides of the flux coating mechanism to stretch the solder ribbon.

[0192] Specifically, the solder ribbon unwinding mechanism is responsible for unwinding the solder ribbon from the coil for subsequent processing.

[0193] The solder ribbon buffer mechanism is located behind the solder ribbon unwinding mechanism and is used to buffer the tension of the solder ribbon to ensure that the solder ribbon will not break or deform due to excessive tension during transmission.

[0194] The welding strip flattening mechanism flattens the welding strip to make it more suitable for fitting with the material surface and improve the welding quality.

[0195] The solder ribbon pre-stretching mechanism is located on one side of the flux coating mechanism, and performs preliminary stretching on the solder ribbon to prepare for the subsequent solder ribbon stretching assembly.

[0196] The solder strip stretching assembly is located on the other side of the solder flux coating mechanism, opposite to the solder strip pre-stretching mechanism. Its function is to perform final stretching on the solder strip to ensure that the solder strip is closely attached to the material surface on the solder strip layout and transmission platform 43.

[0197] Flux coating mechanism

[0198] Exemplarily, the flux coating mechanism includes a coating body, which is provided with a liquid storage tank, and the liquid storage tank is suitable for containing the coating liquid; an adsorbent, which is arranged in the liquid storage tank, and the adsorbent has a coating end, and the coating end is flush with the open end of the liquid storage tank, or protrudes from the open end, and the adsorbent is suitable for adsorbing the coating liquid; wherein, the coating end can contact with the workpiece to coat the workpiece with the coating liquid.

[0199] In this example, the coating body is provided with a liquid storage tank, and the adsorbent is arranged in the liquid storage tank. The coating end of the adsorbent is flush with the open end of the liquid storage tank, or protrudes from the open end. The adsorbent can adsorb the coating liquid, and the welding strip can contact with the coating end of the adsorbent, so that the surface of the welding strip can be coated with the coating liquid. The coating device of the present application does not need to apply pressure to the welding strip, thereby avoiding the welding strip from being bent due to force.

[0200] Furthermore, the surface of the solder strip can be coated more evenly by contacting the adsorbent with the surface of the solder strip for coating. Also, the solder strip can be coated only on the surface where the solder strip contacts the adsorbent, thereby achieving higher coating accuracy and avoiding waste of coating liquid.

[0201] Further, refer to Figure 3 The welding strip processing device 4 also includes a pressing net, a second transport mechanism 44 and a pressing net return mechanism 45;

[0202] The pressing net can press the welding ribbon tightly against the surface of the material;

[0203] The press mesh return mechanism 45 is located on one side of the curing device 5 and is used to return the press mesh on the cured material to the second transport mechanism 44;

[0204] The second transport mechanism 44 is located on one side of the conveying robot 42 , and the conveying robot 42 is used to transfer the pressing net to the welding ribbon laying and transporting platform 43 .

[0205] In this embodiment, the solder strip processing device 4 is further expanded, and the solder strip processing device 4 includes a press screen, a second transport mechanism 44 and a press screen return mechanism 45 .

[0206] The pressing mesh can press the welding strip tightly against the surface of the material, ensuring a close fit between the welding strip and the material, and improving the firmness and quality of welding. Specifically, the conveying robot 42 transfers the pressing mesh located on the second transport mechanism 44 to the welding strip laying transmission platform 43 and places it on the material. The pressing mesh cover is arranged on the welding strip to ensure a close fit between the welding strip and the material.

[0207] The second transport mechanism 44 is located on one side of the conveying robot 42 and is responsible for transporting the pressed net so that the conveying robot 42 can transfer it to the welding ribbon laying and transporting platform 43 .

[0208] The pressing net return mechanism 45 is located on one side of the curing device 5. After the material is cured, the pressing net on the cured material is returned to the second transport mechanism 44 so that the pressing net can be used again. Specifically, the pressing net return mechanism 45 is located on one side of the third transport mechanism 50 of the curing device 5.

[0209] It should be noted that, in this embodiment, the second transport mechanism 44 includes but is not limited to structures such as belts and rollers, and the press mesh return mechanism includes but is not limited to structures such as belts and clamps.

[0210] Optionally, the welding strip processing device 4 further comprises a magnetic suction device. When the pressing screen cover is arranged on the welding strip, the magnetic suction device cooperates with the pressing screen to make the welding strip fit with the material.

[0211] The magnetic device is used in conjunction with the pressing mesh. When the pressing mesh cover is placed on the welding strip, the magnetic device ensures close contact between the pressing mesh and the battery cell through magnetic force, thereby firmly pressing the welding strip onto the bonding portion.

[0212] For example, through precise control of magnetic force, the magnetic suction device can ensure that the welding strip and the adhesive part are accurately positioned, thus avoiding the offset or misalignment problems that may occur in traditional methods.

[0213] For example, when the first surface (front) of the material needs to be cured, the soldering tape can be attached to the material by using a press screen combined with a magnetic device. When the second surface (back) of the material needs to be cured, the magnetic force can be used to press the material down as much as possible to facilitate the bonding of the soldering tape and the material.

[0214] <Curing device 5>

[0215] In one embodiment, referring to Figure 3 , the curing device 5 comprises a third transport mechanism 50, and a curing component is arranged above and / or below the third transport mechanism 50;

[0216] The third transport mechanism 50 is connected to the welding ribbon laying and transporting platform 43 so as to transport the material to the third transport mechanism 50 for curing.

[0217] In this embodiment, the curing device 5 includes a third transport mechanism 50, which is responsible for material transport. The third transport mechanism 50 can be a belt, a chain, a roller or other transport methods.

[0218] The main function of the third transport mechanism 50 is to move the material from one position to another, especially from the welding ribbon laying and conveying platform 43 to the third transport mechanism 50, so as to cure the adhesive through the curing component.

[0219] The curing component is the core of the curing device 5 and is responsible for providing necessary curing conditions (such as heat, light, pressure, etc.) These conditions promote the curing reaction of the material (such as the adhesive on the material) to achieve the desired physical and chemical properties.

[0220] The curing component is used to cure the adhesive on which the solder strip is arranged. On the one hand, the adhesive is fixed and the connection with the battery cell is strengthened. On the other hand, the adhesive is fixed to improve the connection reliability between the solder strip and the adhesive.

[0221] Optionally, the curing component can use thermal curing, UV curing or other curing techniques. The specific curing method and parameters (such as temperature, time, light intensity, etc.) can be adjusted according to the properties of the adhesive and soldering tape used.

[0222] In this embodiment, the third transport mechanism 50 is connected to the welding ribbon laying and transporting platform 43 to ensure that the material can be smoothly transported from the laying platform to the curing area. This connection can be achieved through physical contact, mechanical coupling or automatic control system.

[0223] <Welding device 6>

[0224] In one embodiment, referring to Figure 7-Figure 9The welding device 6 includes a welding transport mechanism 61 and a welding mechanism 62, wherein the welding transport mechanism 61 is used to transport the material of the curing device 5 to the welding mechanism 62;

[0225] The welding mechanism 62 is used to weld the welding strip to the material.

[0226] In this embodiment, the welding device 6 is mainly composed of two parts: a welding transport mechanism 61 and a welding mechanism 62. These two parts work together to realize the process of transporting the material of the curing device 5 to the welding position and performing welding.

[0227] First, the main function of the welding transport mechanism 61 is to transport materials. The welding transport mechanism 61 takes out the processed materials from the curing device 5 and then accurately transports them to the working area of ​​the welding mechanism 62. Specifically, the welding transport mechanism 61 grabs the processed materials from the third transport mechanism 50 and transports the materials to the working area of ​​the welding mechanism 62. This process requires high-precision positioning and transporting technology to ensure that the materials will not be damaged during the transport process and can accurately reach the welding position.

[0228] Next, the welding mechanism 62 is responsible for welding the welding strip to the material. After the material reaches the welding position, the welding mechanism 62 will start the welding process and use appropriate welding technology and parameters to firmly weld the welding strip to the material. This process requires precise welding control and high-quality welding technology to ensure the strength and reliability of the welded joint.

[0229] Welding handling mechanism 61

[0230] For example, refer to Figure 7 and Figure 8 The welding transport mechanism 61 includes an installation mechanism 611, a pickup mechanism 612 and a pressing mechanism 613, and the pickup mechanism 612 and the pressing mechanism 613 are both connected to the installation mechanism 611. The installation mechanism 611 can drive the pickup mechanism 612 and the pressing mechanism 613 to move. Specifically, the installation mechanism 611 can drive the pickup mechanism 612 to transfer the materials located at the third transport mechanism 50 to the welding mechanism 62. The pressing mechanism 613 can move above the welding mechanism 62 to press the welding strip located at the welding mechanism 62. Specifically, the pressing mechanism 613 includes a display of distributed pressing members 6131, and the pressing members 6131 are placed on the welding strip to fit the welding strip tightly to the material.

[0231] Exemplarily, the pressing member 6131 includes a pressing head and a pressing rod, the pressing rod is connected to the mounting mechanism 611, the pressing head is elastically and telescopically connected to the pressing rod, and the pressing head is suitable for pressing the welding strip.

[0232] Welding mechanism 62

[0233] For example, refer to Fig. 9 The welding mechanism 62 includes a heating device 621, which includes a fixing plate 622, a mounting frame 623 and a heating body 624. The heating body 624 can be floatingly arranged on the mounting frame 623, and the mounting frame 623 can be raised and lowered in the vertical direction relative to the fixing plate 622;

[0234] The welding mechanism 62 also includes a welding platform 625, which is used to support the battery cell with a welding strip. The welding platform 625 is fixed on the fixing plate 622. The heating body 624 is located below the welding platform 625. The heating body 624 is used to cooperate with the pressure head of the welding handling mechanism 61 to weld the welding strip.

[0235] In a specific example, the heating body 624 is provided with a plurality of heating sub-bodies along its length direction, each heating sub-body is independently provided, and a plurality of strip welding heads are provided on the heating sub-body. The strip welding heads cooperate with the pressure head of the welding conveying mechanism 61 to weld the welding strip.

[0236] In order to enable the heating body 624 to be floated on the mounting frame 623 , a buffer mechanism is provided between the heating sub-body and the mounting frame 623 , and the buffer mechanism drives the heating sub-body to float relative to the mounting frame 623 .

[0237] It should be noted that this embodiment does not limit the structure of the buffer mechanism, as long as it can drive the heating sub-body to float relative to the mounting frame 623.

[0238] In a specific example, the heating device 621 also includes a main driving mechanism, at least two auxiliary driving mechanisms and a transmission mechanism, and the at least two auxiliary driving mechanisms are respectively located on opposite sides of the main driving mechanism; the auxiliary driving mechanism is linked with the main driving mechanism through the transmission mechanism to jointly drive the mounting frame 623 to move up and down in the vertical direction relative to the fixed plate 622.

[0239] It should be noted that this embodiment does not limit the structures of the main driving mechanism, the auxiliary driving mechanism and the transmission mechanism, as long as the driving installation frame 623 can be driven to move up and down relative to the fixed plate 622.

[0240] <Method Example>

[0241] The embodiment of the present application also provides a method for producing a battery cell. The method for producing a battery cell is applied to the battery cell string welding machine described above;

[0242] The battery cell production method comprises the following steps:

[0243] S1: Provide materials;

[0244] S2: applying glue on the first surface and / or the second surface of the material to form a glue application position; the first surface and the second surface are arranged opposite to each other;

[0245] S3: Laying a welding tape on the material, wherein the welding tape corresponds to the glue dispensing position;

[0246] S4: curing the glue dispensing position to pre-fix the welding ribbon;

[0247] S5: welding the pre-fixed welding ribbon and the material to form a battery cell.

[0248] In step S1 , materials may be provided by the feeding device 1 , and the feeding device 1 transfers the materials to a preset position, so as to be grabbed by the first transfer mechanism 2 and transferred to the rubber printing device 3 .

[0249] In step S2, the glue printing device 3 applies glue on the first surface (front side) and / or the second surface (back side) of the material to form glue dispensing positions.

[0250] In step S3, the welding strip processing device 4 is used to lay welding strips on the material, and the welding strips correspond to the glue dispensing positions.

[0251] In step S4, the material is cured by the curing device 5 so that the soldering strip and the adhesive are connected together to improve the connection strength.

[0252] In step S5 , the pre-fixed welding strip and the material are welded together by the welding device 6 to form a battery cell.

[0253] The loading device 1, the printing glue device 3, the first transfer mechanism 2, the welding tape processing device 4 and the curing device 5 mentioned in this embodiment are all the devices mentioned in the first aspect of the embodiment of the present application, and the structure and function of each device will not be described in detail here.

[0254] Therefore, in this embodiment, the soldering tape is fixed to the battery cell by first dispensing glue and then welding, thereby avoiding the risk of the soldering tape falling off during the transportation of the battery cell and improving the quality of the battery cell.

[0255] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0256] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A battery cell string welding machine, characterized in that: include: A feeding device (1) for transferring materials to a preset position; A glue printing device (3) is used to apply glue to the surface of the material transferred thereto to form a glue dispensing position; A first transfer mechanism (2) is located between the feeding device (1) and the glue printing device (3); the first transfer mechanism (2) is used to transfer the material located at the preset position to the glue printing device (3), or is also used to transfer the single-sided glue-dispensed material returned by the glue printing device (3) to the glue printing device (3) again; A solder strip processing device (4) is located on one side of the glue printing device (3), and the solder strip processing device (4) is used to cover the surface of the material after glue application with a solder strip, and the solder strip corresponds to the glue application position; A curing device (5), located on one side of the solder strip processing device (4), the curing device (5) being used to pre-fix the solder strip; A welding device (6) is located on one side of the curing device (5), and the welding device (6) is used to weld the pre-fixed welding strip to the material.

2. The battery cell string welding machine according to claim 1, characterized in that: The feeding device (1) comprises a first conveying mechanism (10), a material grabbing mechanism (11), a first turning mechanism (12) and a second conveying mechanism (13); The first conveying mechanism (10) is located on one side of the material grabbing mechanism (11), and the second conveying mechanism (13) is located below the first turning mechanism (12) and the material grabbing mechanism (11); The material grabbing mechanism (11) is used to transfer the material of the first conveying mechanism (10) to the second conveying mechanism (13); Wherein, every two adjacent materials transmitted to the second conveying mechanism (13) form a group, and the first turning mechanism (12) is used to turn over one material in each group and transfer it to the second conveying mechanism (13).

3. The battery cell string welding machine according to claim 1, characterized in that: The rubber printing device (3) comprises a rubber printing component (31) and a second transfer mechanism (32), wherein the rubber printing component (31) is located between the first transfer mechanism (2) and the second transfer mechanism (32); The rubber printing device (3) further comprises a first transmission mechanism (33), the first transmission mechanism (33) being located on a side of the second transfer mechanism (32) away from the rubber printing component (31), the second transfer mechanism (32) being used for transferring materials of the rubber printing component (31) to the first transmission mechanism (33).

4. The battery cell string welding machine according to claim 3, characterized in that: The printing glue device (3) further comprises a second transmission mechanism (34) and a third transmission mechanism (35), wherein the third transmission mechanism (35) is arranged close to the first transfer mechanism (2), and the first transfer mechanism (2) is used to transfer the single-sided glue-dispensing material returned by the third transmission mechanism (35) to the printing glue component (31) again; A rotating mechanism is provided between the first transmission mechanism (33) and the second transmission mechanism (34), and the rotating mechanism is used to transfer the single-sided glued material of the first transmission mechanism (33) to the second transmission mechanism (34) and rotate it by a preset angle; and A second turning mechanism is provided between the second conveying mechanism (34) and the third conveying mechanism, and the second turning mechanism is used to turn the material of the second conveying mechanism (34) by 180 degrees and transfer it to the third conveying mechanism (35).

5. The battery cell string welding machine according to claim 4, characterized in that: The first transmission mechanism (33), the second transmission mechanism (34) and the third transmission mechanism (35) are all provided with glue-avoiding tooling.

6. The battery cell string welding machine according to claim 3, characterized in that: The first transfer mechanism (2) and / or the second transfer mechanism (32) is a four-rotating clamping device.

7. The battery cell string welding machine according to claim 1, characterized in that: The welding strip processing device (4) comprises a first transport mechanism (40), a conveying robot (42) and a welding strip laying and transporting platform (43); A conveying mechanism (41) is provided between the first conveying mechanism (40) and the rubber printing device (3), and the conveying mechanism (41) is used to convey the material output by the rubber printing device (3) to the first conveying mechanism (40); The conveying robot (42) is located on one side of the first transport mechanism (40) and is used to transfer materials from the first transport mechanism (40) to the welding ribbon laying and transmission platform (43).

8. The battery cell string welding machine according to claim 7, characterized in that: The solder strip processing device (4) further comprises a solder flux coating mechanism, a solder strip stretching component and a solder strip pre-processing component; The soldering flux coating mechanism and the solder strip laying and transporting platform (43) are located between the solder strip pretreatment component and the solder strip stretching component, and the soldering flux coating mechanism is located between the solder strip laying and transporting platform (43) and the solder strip pretreatment component; The solder strip stretching assembly and the solder strip pretreatment assembly cooperate to enable the solder strip to be tightly attached to the surface of the material on the solder strip laying and transmission platform (43), and the solder flux coating mechanism can coat the solder flux for the solder strip.

9. The battery cell string welding machine according to claim 7, characterized in that: The welding strip processing device (4) further comprises a pressing net, a second transport mechanism (44) and a pressing net return mechanism (45); The pressing net can press the welding ribbon tightly against the surface of the material; The press mesh return mechanism (45) is located on one side of the curing device (5) and is used to return the press mesh on the cured material to the second transport mechanism (44); The second transport mechanism (44) is located on one side of the transport robot (42), and the transport robot (42) is used to transport the press mesh to the welding ribbon laying and transporting platform (43).

10. The battery cell string welding machine according to claim 1, characterized in that: The curing device (5) comprises a third transport mechanism (50), and a curing component is arranged above and / or below the third transport mechanism (50); The third transport mechanism (50) is connected to the welding strip laying and transporting platform (43) so as to facilitate the transport of materials to the third transport mechanism (50) for curing.

11. The battery cell string welding machine according to claim 1, characterized in that: The welding device (6) comprises a welding transport mechanism (61) and a welding mechanism (62), wherein the welding transport mechanism (61) is used to transport the material of the curing device (5) to the welding mechanism (62); The welding mechanism (62) is used for welding the welding strip to the material.

12. A method for producing a battery cell, characterized in that: The battery cell production method is applied to a battery cell string welding machine as described in any one of claims 1 to 11; The battery cell production method comprises the following steps: Supply of materials; Glue is applied to the first surface and / or the second surface of the material to form a glue dispensing position; the first surface and the second surface are arranged opposite to each other; Arranging a welding tape on the material, wherein the welding tape corresponds to the glue dispensing position; Curing the glue dispensing position to pre-fix the welding strip; The pre-fixed welding strip and the material are welded to form a battery cell.

Images